Flash-igniter for gas-burners.



H. FRANK.

FLASH IGNITER FOR GAS BURNERS.

APPLICATION HLED DEC.26| 1916. lfiflfi fio Patented Sept. 25, 191?,

2 SHEETSSHEET l.

H. FRANK. ILAs'HmM- ER ma GAS BURNERS. APPUCATIQN man D.C.26. 191s.

'. Patenwd Sept. 25, 1917 2 SHEETS-SHEET 2.

, c) SUMXUQE I be se provide a shield a pilot light and at the same time to supply the invention the igniter being injcommunicw tion with the gas stovemain supply pipeand HERMAN FRANK, OF CHICAGO, ILLINOIS, ASSIG-NOR 0F ONE-HALF EU J'ULIUS it. lit-UTE,

OF CHICAGQ, ILLINOIE.

FLASH-IGNITEB FOR GAS-BUENEES.

To all whom it may concern:

Be it 'known that I, HERMAN FRANK, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Flash-Igniters for Gas-Burners; and I do hereby declare that the following is a full, clear, and exact de scription there0f.'

My invention refers to lighters for gas stoves and has for its object to provide a sin gle lighter so arranged that item be selectably adjusted to ignite any one of a series of gas stove burners.

Another object of my invention is to provide a structure of the above referred to' character so arranged that the lighter can lectably moved to aline a firing charge with a burner and a' means for alineinent is arranged to control a gas supply.

A- further object of my invention is to ring head which is arranged to necessary air for the gas mixture, and also to providea fire aperture whereby the flash jetis dischargedthrough the head. e

A further object of my invention is to provide 'a swivel joint for the lighter con taining a flash mechanism and a common means for controlling the flash and for directing the alinement of the lighter to a particular burner.

With the above objects in view the invention constitutes any constructed combination of mechanic elements as exemplified in thedrawing and hereinafter described.

In t e drawings: 1

Figure 1 represents aside'elevation of a lighter or flash bodying features of my invention with parts broken away to more clearly illustrate certain details of structures.

Fig. 2 an enlarged detailed sectional elevation o -the controlling flash mechanism.

' Fig. 3 is an end view of the lighter head.

'Fig. 4 a 'bottom view of the same. 1

Fig. 5 a diagrammatic plan viewof a group of gas stove burners associated with,

a flash igniter embodying thefeatures of my adapted to sw upon a swivel jpint as in dicated iu .dotte line so as to discharge a Specification of Letters Patent.

igmter for gas burner em-.

1 extends. into the bore of Patented dept. Eli, it.

Application filed December 26, 1916. Serial No. 138,883.

jet within the field of any one of the group of burners.

Fig. 6 a sectional elevation of a form of hollow firing head, the caigd by line 6-6 of Fig. 7.

1g. 7 broken away, but structural features.

"Referring by characters represents the header or main supply gas pipe to the stove into which is tapped or otherwise secured a channeled coupling member. The coupling member has screw threaded therein the shank of a valve shell l, which shell is provided with a-vertical disposed tapered bore for the reception of a hollow valve plug 2, the same forming a swivel or ground joint connection with relation to the shell.

The valve plug is provided with an annular channel 3, in constant connection with in section to illustrate to the drawing a plan view of the some with parts section being india duct 3, with which the shell is provided,

which communicates with the channel. 3. A partition above this chaniber 3 is formed with a discharge port 6, which port is controlled by the tapered end of a valve stem 9, that projects beyond the upper portion of the valve plug and terminates with a head 9. The valvestem is reciprocally mounted within a thimble 8 which thimble is in a screw threaded union with the valve plug and extends into a gas chamber 2 formed in the upper portion of the valve plug.

' The valve stem 9 is held to its seat 6 by a coil spring 10 which spring surrounds the stem and is compressed between the upper end of the sleeve 8 and a pin 8' that is car riedby said stem, the pin being guided in slots that extend through the walls of the thimble 8 at its lower end.

The shank portion of the valve shell 1 is provided with a by-pass channel 4 which communicates with the duct 3, and is controlled or regulated by a screw plug 12 and acontinuation 4 of the and communicates with an annnlarrecess 5 thatiis formed in the valveplug above the valve-contrplled portfi. .This annular recess in turn is provided with an aperture 5 1n communication with the by-pa'ss channel 2 the valve shell 1 formed in the hollow valve plug, through a port 3" its which communicates with the gas chamber 2". Thus it will be seen that a constant restricted flow of 'gas is supplied from the header A to said gas chamber irrespective of the position of the valve plug 2. The gas chamber 2 is also provided with a discharge port 7 that communicates with a threaded boss 7' which constitutes a part of the valv 'plug. ,1

The lower end of the chamber 3" is closed by a plug 2' which plug is in threaded union with the lower end of the valve plug, said end being extended below the shell. The plug 2 is formed with a head or flange terminal, and said flange. constitutes a seat for one end of .a coiled spring 10 which surrounds the valve plug wlth its other end in the nga gement with a valve shell, whereby the tapered valve plug is held to its seat and wear is taken up automatically.

In order to lift the tapered end of the valve stem from its seat, I provide a lever armll, which lever arm is fulcrumed toan ear 2 that projects fromthe upper portion of the valve shell. lever 11 is bifurcated and projects under the head of the valve stem. A

One end of a supply tube 13 is in threaded union with the boss 7' of the valve plug and the outer free end of the tube is in threaded union with a boss that constitutes a part of the hollow firing head 14. The inner end of the firing head boss is formed with a nipple having a restricted gas passage 15 therein.

This gas passage is alined with the circu-.

lar portion 16 of a key-hole shaped fireport,

formed in the outer wall of the head. The

bottom of the firing head is provided with an air intake\'slot 17 and the opposite side walls of the said firing head are provided with a series-of vent ports 17 whereby combustion is maintained within the head. Thus it will be understood that thesingle firing head is arranged to maintain a constant I pilot light at the point of discharge of the passage 15, which pilot light is protected a gainst cross current of air that would other wise tend to snuff out said light. 1 From the foregoing description it will be observed that, irrespective of the position of the fire head, a constant pilot light is maintained therein, by means of a restricted quantlty of gas which is caused to travel through the bypass channels 4 and 4' and from thence through the gas chamber 2' and suppl tube 13. By

to the port arranging the fire head on the free end" of a short tube, at the forward portion of the stove, it will be observed thatsaid firing head is clear of obstruction, so that it can be swung to any selected position as indicated in the diagram Fig. 5-, to ignite any 1 one of the group of burners B, or what is termed the simmering burner, which is usually positioned within the center field of The short arm of this the group of burners. Another advantage of my arrangement and positioning of the lighter is that the simmering burner will not form an obstruction when a burne r is to be ignited, which obstruction in practice has been found to exist, where a fixed flash igniter is used. It is apparent that'when resulting in the pilot light developing a thin flame jet, which will be discharged upon the gas stove burner.

Hence a common controlling means is provided whereby the fire head is adjusted to any position desired and a flame is caused to be discharged within the field of the burner. While I have shown and described a specific swivel valve, which constitutes the hinge connection for the flash igniter, it is manifested that I may without departing from the spirit of invention, .vary the details of structure within the knowledge, of-

whom are termed, skilled mechanics.

Referring particularly to Figs. 6 and 7 of the drawings showing my preferred form of hollow firing head, 18 represents a circular cup likeshell the bottom of which is provided with'a series of air intake openmgs 19, and the ipper edge of the shell is cut away at intervals to form spring lips '20 which lips are offset. By offsetting the lips 20 the cut away portions of the side walls of the shell constitute vent apertures 20, the upper edge of the cup like shell is closed by a removablecap piece 21 having a down turned flange 21' which is circular in form and .engages:the lips 20.

,By this arrangement it will be seen that the gas fumes can be vented through the 5 openings 20'.

.. The sidewalls of the shell at provided with a single circular fire port 22, andopposite its firing port, this shell side walls are formed with an opening 23 whereby a coup ling connecting is effected between the shell and tube-13.3

Thisrcoupling connection comprises a nipple 24 havmg a reduced end 25 which proj ects through the aperture 23 and terminates at the center point of the shell, the said nip ple being provided with a gas passage 15. hereduced end of the nipple is threaded its shank for the reception of a clamping t 25' andthe outer end of the nipple is rmed with an internally threaded ferrule portion 26, which abuts the outer wall of the shell, the same being bound between a shouldered portion of the ferrule the nut. The. tube as "shown is threaclled' union with the nipple.

' shell. at its top,

' that are formed in the shell headof the pilot light.

By the construction just described *it will" apparent that, owing to the fact that only one .fire port is employed, there is no opporunity for cross currents of air to snufi out the pilot light; Attention is also directed to the fact that in this form of firing head perfect combustion isefi eoted by the introduction of 'air'throiigh the bottom of theshell in an upward direction and =the' venting of said which vents are in turn protected against outward blast of air, or back currentsby the down turned flange 21;

am aware that the prior-art discloses broadly some type of swiveled flash igniters, butiso far as I am aware these igniters do not provide means for incasing a constantly burning pilot light, nor do they show an auxiliary valve at their swivel point provided with a controlling handle which will, when moved'in a horizontal direction, ad-

just the flash igniter to light a particular f I and this result has been demonstrated in practice.

By employing a construction wherein a sing e port is employed in combination with a swivel member the'cross currents of air will not have a snufling effect upon the pilot light, and furthermore, owing to the-incasees. the same comprising a swiveled supply ment of the pilot light-as described, eventhough the arm carrying it is shifted rapidly, the tendency of the pilot to blow out is off-set, as the only current of air which can possibly travel through the casing then is from the bottom to the top of the same or through it inua horizontal direction, and the gas discharge which supplies .tlle restricted pilot-light is arrangeddiametrically opposite the firing port in the wall head-0r shell so that the current of air enter-in this firing port will be neutralized by saifi gas discharge.' a

What is claimed 1. The combination of a gas stove having a series of burners, a flash igniter thereior tu e, a hollow head carried at the free end ofthe tube provided with vents in its bottom and side wallsand a single horizontally disposed .firing port, a horizontal nipple in communication with the free end of the tube having a series of set outwardly side wall of said shell also havin a pair of andexten'ding "into the head in axial alinement with thefiring port thereof, means for supplying a constant restricted quantity of gas to the nipple,-

the igniter, and a handle. for the valve adapted to shift the flash igniter to selective position when crease the supply of gas moved vertically p 2. The combination with a gas' stove having a series of burners, a flash igniter therefor comprising a swiveled firing head on the free end of the tube, mgns for supplying a constant restricted uantity of gas to the firing head, an auxilto the nipple when iaryvalve mounted within the swiveled. con net-tion of the igniter', and-ahandle for the auxiliary valve, said handle shi flashigniter to selective positions when moved horizontally andin'creasing the sup-* tiring head when moved.

ply of gas to the vertically.

3. A flash burner igniters comprising a cup-like shell air inlet openings in its bottom, a plurality of outlet vents in' the side wall adjacent the upper edge and a single firing nipple havinga restricted opening extending through the Side wall opposite the firing .port and in alineinent therewith, a cap elosure for the top of the shell having down an auxiliary valve I mounted within the sw veled connection of supply tube, a

port in the side wall} a gasmoved horizontally and to initln'g the igniter head for swivel'ed.

turnedfianges adapted to shield'the outlet vents and lips extending from the body of the shell for supporting the cap.

4. A flash igniter head for swiveled burner igniters comprising a cup-likeshell having I a series of air inlet openings in its bottom and a single firing port in the side wall, the upper edge of the side walls being slit at intervals to form spring lips which are oil set outwardly to provide outlet vents, a removable cap piece flanges to shield the outlet vents, said sprin lips'engaging the flanges of the cap to hold the same in position, and a gas nipple hay-- mg a restricted opening extending through the side wall opposite the firing port and in alinelnent therew ith.

having down turned.

let

5. A. flash igniter head for swiveled burner igniters comprising a cup-like shell having a series of air inlet openings in its bottom,

the upper edge of thefsidewall being slit at intervals to form spring lips which araofl' to provi e outlet vents, the

of the last said nipple of saidmember for clampin the side wall of the shell between it and t e shoulderof the member, a fuel supply pipe connected with the outer end of the coupling member,

and a removable cap piece having down I turned'flanges to shield the outlet vents, said spring lips engaging the flanges of the. cap to hold the same in position.

6. The combination with a firing member,

"of a control valve therefor comprising a communicating with the interior of the plug by means of a opening through the wall thereof, said plug also having an outlet'adj acent one end communicating with the firing member, said shell having a main gas passage way communicating with one of the channels and a bypass from the main passage way to the other channel, an apertured partition wall in the tubular plug between the two openings from the channels, the aperture therein forming a valve seat, a closure in the end of the plug remote from the outlet thereof, a valve stem in the opposite end of the plug and carrying a valve head for coaction with said seat, and an operatin handle for the valve stem.

The combination of a plurality of gas burners and a fiash igniter therefor comprising a manually controlled swiveled igniting tube movable selectively into cooperative relation with individual burners to ignite the gas therefrom,- a connection between said igniting tube and a source of gas supply, means for supplying a constant restricted supply of gas to said igniting tube, a valve controlling said connection and normall re? stricting the supply of gas independent y of any position assumed by the swiveled tube, manuallyoperated means capable of being operated during movement of the swiveled igniting tube and after it has been selectively adjusted, for opening said valve toincrease the supply of gas to said igniting tube and means for returning said valve to its closed osition as soon as said valve opening'means is released irrespective of any position assumed by the igniting tube.

8. The combination of a 'pluralityof gas burners and a flash igniter therefor, comprising a manually controlled swiveled igniting tube movable selectively into coiiperative relation with individual burners to ignite the gas therefrom, a connection between said igniting tube and a source of gas supply, means for supplying a constant restricted supply of gas to said igniting tube, a valve controllin said connection and normally restricting the supply of gas independently of any-position assruned by the swiveled tube,v

a handle for selectively adjusting the igniting tube, and for opening said valve to increase the supply of gas to said igniting tube after it has been selectively adjusted and a spring for returning said valve to its closed position as soon as said opening means is released, irrespective of any position assumed by the igniting tube. 1 V

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of hfilwaukee and State of Wisconsin.

HERMAN FRANK. 

